Stair-carpet fastener.



No. 784,683. PATENTED MAR. 14, 1905. S. KAHN.

STAIR CARPET FASTENER.

APPLICATION FILED APR.11. 1904.

Tag. 5-

Wihlmow 0 m 0 n UNITED STATES Iatented March 14, 1905.

SOLOMON KAHN, OF CADILLAC, MICHIGAN.

, STAIR-CARPET FASTENER- SPECIFICATION 01ming part of Letters Patent N0.784,683, dated March 14, 1905. Application filed April 1]., 1904. SerialNo. 202,641.

To all whom, it may concern:

. ments in Stair-Carpet Fasteners: and I do declare the following to bea full, clear, and exact description of the invention,such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention is an improved stair-carpet fastener adapted for use infastening staircarpets without injury to the same and without marring orotherwise injuring the stairs; and it consists in the construction,combination, and arrangement of devices hereinafter described andclaimed.

In the accompanying drawings, Figure 1 is an elevation of a stair-carpetfastener embodying my improvements. Fig. 2 is a similar view at rightangles to Fig. 1. Fig. 3 is a detailsectional view taken on the planeinclicated by the line a a of Fig.1. Fig. 4 is a perspective viewshowing my improved staircarpet fastener in use, and Fig. 5 is aperspective view of a modified form of stair-carpet fastener.

My improved stair-carpet fastener comprises a pair of heads 1 and anadjusting and connecting screw 2. Each head 1 is preferably of the formhere shown, is provided at its inner end with a lug 3, which projectsfrom the inner side thereof, has prongs or points 4: at its outer endadapted to engage the upper side of a step and the under side of anosing of the next step above, and each of the said heads is furtherprovided near its Outer end with a laterally-extendinginturned prong 5,which projects from the Outer side thereof.

The screw 2 has its opposite ends reversely screw-threaded and engagewith correspondingly-threaded openings in the lugs 3 of the heads. Thesaid screw is here shown as provided with a central opening 6 for theinsertion of an instrument whereby the said screw may be turned to movethe heads toward or from each other, according to the height of theriser.

In practice a pair of my improved fasteners are employed in connectionwith the riser of each step. The heads of the fasteners bearing againstthe face of the riser, the prongs 4 thereof engage the surface of onestep and the nosing the next step above, and. the prongs 5 projectradially from the outer sides of the respective fasteners, the latterbeing spaced apart appropriately to correspond with the width of thestep-carpet. The stair-carpet is attached to the fasteners by engagingthe prongs 5 of the latter with the carpet near its edges, the saidprongs preferably being formed through the fabric of the carpet, so thatthe points of the prongs lie on the outer side of the carpet, as shownin Fig. at.

It will be understood that the carpet entirely covers and conceals thefasteners excepting as to the points Of the prongs 5 of the fasteners.It will be further understood that the engagement of the prongs t withthe stairs in addition to the action of the screws 2 in adjusting andsetting the fasteners enables the latter to be firmly secured to thestairs. \Vhere the fasteners are to be used on stone or iron stairs, theouter ends of the heads thereof may be provided with rubber or othersuitable frictional engaging tips in lieu of the prongs 4.

In Fig. 5 I show a modified form of staircarpet fastener, comprising aplate 7, having an opening 8 for a screw-head, which may be readilyattached to the stair-riser, and provided with aprong 9 to engage thecarpet, as herebefore described.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A stair-carpet fastener having means to secure it against astair-riser and having an outwardly-projecting prong adapted to beingage the carpet and a right and left handed adjusting-screw connectingthe said heads,substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

SOLOMON KAI-IN.

\Vitnesses:

FRED S. LAMB, S. KRAMER.

